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Thermophysics and Aeromechanics

, Volume 23, Issue 5, pp 629–638 | Cite as

Effect of the surface roughness of blunt cone forebody on the position of laminar-turbulent transition

  • D. A. BountinEmail author
  • Yu. V. Gromyko
  • A. A. Maslov
  • P. A. Polivanov
  • A. A. Sidorenko
Article

Abstract

In the present paper, data on the effect of the surface roughness of blunt cone forebody on the position of laminar-turbulent transition are reported. The study was carried out under freestream Mach 5.95. It was found that the roughness position plays a substantial role in the transition process. Critical Reynolds numbers at which the laminar-turbulent transition occurs on the nose-tip of the model were identified. For the first time, hysteresis in transition position was observed.

Keywords

hypersonic boundary layer laminar-turbulent transition surface roughness 

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Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • D. A. Bountin
    • 1
    Email author
  • Yu. V. Gromyko
    • 1
  • A. A. Maslov
    • 1
  • P. A. Polivanov
    • 1
  • A. A. Sidorenko
    • 1
  1. 1.Khristianovich Institute of Theoretical and Applied Mechanics SB RASNovosibirskRussia

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